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[1]WANG Li-qin,LI Hong-li,DONG Zhi,et al.Particle Size Characteristics of Sediment Profile in Gobi of Ejina Basin[J].Research of Soil and Water Conservation,2014,21(01):152-156,162.

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Particle Size Characteristics of Sediment Profile in Gobi of Ejina Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 01 Page number: 152-156,162 Column: Public date: 2014-02-28

Title:: Particle Size Characteristics of Sediment Profile in Gobi of Ejina Basin

Author(s):: WANG Li-qin¹, LI Hong-li¹, DONG Zhi¹, SHEN Yun-kuo¹, ZHANG Zhi-peng¹, YANG Wen-bin²; 1. Taishan Forest Ecosystem Research Station, Shandong Provincial Key Laboratory of Soil Erosion and Ecological Restoration, College of Forestry, Shandong Agricultural University, Tai’an, Shandong 271018, China;
2. Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China

Keywords:: Gobi; sediments; profile; particle size composition; particle size characteristics; Ejina basin

CLC:: P588.21,X141

DOI:: -

Abstract:: By taking the Ejina Basin region as the research site, the particle size composition of sediment profile in gobi, average particle size, sorting coefficient, skewness and kurtosis were analyzed by field investigation and laboratory test. The results show that each sample point along the vertical direction from top to bottom sediment particle size composition from stone into sand on the longitudinal sediment. Except for the top of alluvial fan, the average grain size changed smaller and had significantly thinner trend by vertical direction. The grain sorting coefficient in different profile layers was poor or poorer, but only it was better or medium on near shore lake shallow and lake side. Except for the top of alluvial fan, the skewness was from negative to very negative, in other points; the skewness of sediment particle from top to bottom tends to nearly symmetry and positive distribution by the vertical direction. The kurtosis in the top of alluvial fan and in the middle of alluvial fan sediment were flat, while from the alluvial fan edge to lake side sediment by flat, wide flat into sharp distribution from the bottom up. All in all, the sediment profiles of gobi appeares the characteristics of fine average grain size, poor or pooer sorting coefficient, nearly symmetry and positive skewness and flat kurtosis, which reflects the particles in different levels of sedimentary environment, geomorphic feature, erosion and deposition pattern, and can provide the basis for the gobi classification.

References:: [1] 王贵勇,董光荣,李森,等.试论戈壁面及指相意义[J].中国沙漠,1995,15(2):124-130.
[2] 吴正.风沙地貌学[M].北京:科学出版社,1987.
[3] 屈建军,黄宁,拓万全,等.戈壁风沙流结构特性及其意义[J].地球科学进展,2005,20(1):19-23.
[4] 任明达,王乃梁.现代沉积环境概论[M].北京:科学出版社,1981:8-93.
[5] 刘富刚.鲁西北地表沉积物粒度特征及分布成因研究[J].人民黄河,2008,30(7):12-13,29.
[6] 蒋庆丰,刘兴起,沈吉,等.乌伦古湖沉积物粒度特征及其古气候环境意义[J].沉积学报,2006,24(6):879-881.
[7] 董玉祥.海岸现代风成砂粒度参数特征的研究:以中国温带海岸为例[J].沉积学报,2002,20(4):656-662.
[8] 曹振,胡克,张永光,等.科尔沁沙地地表沉积物粒度分析与可风蚀性讨论[J].中国沙漠,2005,25(1):15-19.
[9] 李柏,高甲荣,胡封兵,等.北京王虎沟泥石流堆积物粒度参数分析[J].中国水土保持学报,2011,9(4):7-10.
[10] 谢柯.内蒙古额济纳旗松散沉积物的粒度分异特征及其沉积环境[D].长沙:湖南师范大学,2008.
[11] 毕志伟,杨振京,徐建明,等.塔里木盆地腹地第四纪沉积物粒度特征及其沉积环境[J].干旱区地理,2009,32(3):335-339.
[12] 肖晨曦,李志忠.粒度分析及其在沉积学中应用研究[J].新疆师范大学学报:自然科学版,2006,25(3):118-123.
[13] 战庆,王张华,王昕,等.长江口区晚新生代沉积物粒度特征和沉积地貌环境演变[J].沉积学报,2009,27(4):675-681.
[14] 雷国良.额济纳盆地晚更新世以来湖相沉积记录与环境演变[D].兰州:兰州大学,2009.
[15] Folk R L, Ward W C.Brazos river bar:A study in significance of grain size parameters[J].Journal of Sedimentary Petrology,1957,27(1):3-24.
[16] Krumbein W C. Measurement and geological significance of shape and roundness of sedimentary particles[J].Jour. Sed. Petrology, 1941,11(2):64-72.
[17] 王飞燕,王富葆,王雪瑜.地貌学与第四纪地质学[M].北京:高等教育出版社,1990:5-61.

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